紧密层 close bed; fixed layer 紧密的 close-knit; compacted; hard-spun; intimate; leakproof; leaktight; pyknomorphic ..
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SEM显示，紧密层和疏松层中均存在大量的龟裂纹。
Many cracks were observed in both layers under higher magnification SEM study.
紧密层与基体金属结合牢固，且紧密层中存在大量纳米尺寸的微裂纹和颗粒。
The inner compact layer, with many micro cracks, is bonded to the substrate tightly.
普通高校公共体育课教师知识层次可划分为核心层知识、紧密层知识、拓展层知识。
The knowledge system of public P. e. teachers in common higher institutions includes core knowledge, related knowledge and expanded knowledge. P.
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